Forming and deformation behavior of the ultrafine-grained Zr-1Nb alloy

Forming and deformation behavior of the ultrafine-grained Zr-1Nb alloy

Bibliographic Details
Parent link:Steel in Translation: Scientific Journal.— , 1971-
Vol. 45, iss. 2.— 2015.— [P. 111-115]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра общей физики (ОФ)
Other Authors: Grabovetskaya G. P. Galina Petrovna, Mishin I. P. Ivan Petrovich, Stepanova E. N. Ekaterina Nikolaevna, Chernov I. P. Ivan Petrovich
Summary:Title screen
The influence of intense plastic deformation on the formation of an ultrafine-grain state in Zr-1Nb alloy is considered, when the alloy contains secondary-phase particles in the volume and at the grain boundaries. Pressing with gradual temperature reduction in the range 973-573 K leads to solution of the secondary-phase particles and the formation of ultrafine grains and subgrains (mean size 0.25 ± 0.10 ?m) in the alloy structure. In pressing at room temperature with intermediate annealing for 1 h in the range 873-803 K, ultrafine grains and subgrains (mean size 0.45 ± 0.18 ?m) are formed in the alloy structure; the secondary-phase particles are retained. The formation of ultrafine-grain structure increases the strength and yield point of Zr-1Nb alloy by a factor of 1.5–2.0, with simultaneous localization of the plastic deformation and decrease in the uniform deformation; the deformation corresponding to failure is also reduced. The presence of secondary-phase particles in the ultrafine-grain structure, like the increase in grain size, prevents localization of the plastic deformation and increases the strain hardening.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:http://dx.doi.org/10.3103/S0967091215020060
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=643312

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